Effects of stocking density on growth, metabolism, and energy budget of Haliotis discus hannai Ino

Gao, Xiaolong; Li, Xian; Shi, Ce; Wu, Fucun; Song, Changbin; Liu, Ying

doi:10.1016/j.aquaculture.2017.09.045

Cited by 11 publications

(6 citation statements)

References 64 publications

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“…A similar phenomenon was observed in Japanese abalone Haliotis discus hannai reared at high density, which showed decreased protein and ash contents (Xiaolong et al. ). In our study, the fish in the HD group appeared thinner than did those in the LD and MD groups, consistent with the lower growth in the HD group.…”

Section: Discussionsupporting

confidence: 75%

“…The activity levels of digestive enzymes directly reflect an organism's ability to digest food and absorb nutrients, as well as the organism's immune state (Xiaolong et al. ). Generally, there is a relationship between food intake and the activities of digestive enzymes, as undigested food stimulates the digestive system to secrete digestive enzymes, which in turn promotes food intake behavior (Bolasina ).…”

Section: Discussionmentioning

confidence: 99%

“…; Xiaolong et al. ). However, null effects of high stocking density on production have been reported for Senegalese Sole Solea senegalensis (Salas‐Leiton et al.…”

mentioning

confidence: 99%

“…Xiaolong et al. () reported that high stocking density depressed the activity of α‐amylase and the expression levels of the polysaccharide cleavage enzyme genes Hdaly and Hdamyl . To our knowledge, few studies have investigated the digestive parameters of Half‐smooth Tongue Soles.…”

mentioning

confidence: 99%

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Influence of Stocking Density on Growth, Digestive Enzyme Activity, Immunity, and Cortisol Levels of Subadult Half‐smooth Tongue Sole Cynoglossus semilaevis in a Recirculating Aquaculture System

Liu

et al. 2018

N American J Aquac

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According to the authors' experience of culturing Half-smooth Tongue Sole Cynoglossus semilaevis, high stocking densities lead to production failure, but few studies have addressed the problem. The purpose of this experiment was to evaluate the impact of stocking density on the growth and physiological parameters of subadult (700-1,200 g) Half-smooth Tongue Soles. The experimental design was completely randomized with three replications and one factorial scheme with three stocking densities: low density (LD; 200 fish/tank, 3.51 kg/m 2 ), medium density (MD; 300 fish/ tank, 5.30 kg/m 2 ), and high density (HD; 400 fish/tank, 7.06 kg/m 2 ). After 90 d, final mean body weight in the LD group was 1,003.4 g, which was 7.85% higher than that in the HD group. In addition, the activities of digestive enzymes (lipase and amylase) were depressed in the HD group relative to the other groups. Levels of immunology indicators (lysozyme, total superoxide dismutase, catalase, and glutathione peroxidase) were significantly lower in the HD group than in the LD and MD groups. The cortisol concentration was significantly higher in the HD group than in the LD and MD groups. These results show that growth, enzyme activity, and cortisol levels in Half-smooth Tongue Soles are negatively affected when the fish are cultured at high stocking density.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

“…; Xiaolong et al. ). However, null effects of high stocking density on production have been reported for Senegalese Sole Solea senegalensis (Salas‐Leiton et al.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Influence of Stocking Density on Growth, Digestive Enzyme Activity, Immunity, and Cortisol Levels of Subadult Half‐smooth Tongue Sole Cynoglossus semilaevis in a Recirculating Aquaculture System

Liu

et al. 2018

N American J Aquac

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“…Exposure of Litopenaeus vannamei to moderate hypoxia resulted in the accumulation of lactic acid and higher glucose content in hemolymph and muscle tissues, suggesting that anaerobic metabolism was increased (Soñanez-Organis et al, 2010). As a crucial glycolytic enzyme, lactate dehydrogenase appears to be more important when larvae need extra energy under stress (Gao et al, 2018). Especially in the 40 L/h group, an increase in the activity of lactate dehydrogenase caused the ATP content of larvae to peak.…”

Section: Discussionmentioning

confidence: 96%

Effects of Flow Velocity on the Growth and Survival of Haliotis discus hannai Larvae in the Recirculating Upflow System From the Point of Energy Metabolism

et al. 2021

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For the abalone Haliotis discus hannai, attachment and metamorphosis are crucial stages in the transition from planktonic to benthic life. Increasing the larval metamorphosis rate by artificially controlling the external environment and simulating natural seawater flow is vital to enhance the hatchery efficiency of H. discus hannai. Thus, in the current study, an upflow recirculating aquaculture unit was designed for the rearing of larval abalone, and the larval hatching rate, survival rate, mode of energy metabolism, and expression levels of metamorphosis-related genes at different flow velocities (0, 5, 10, 20, and 40 L/h) were compared and analyzed. At flow velocities less than 20 L/h, no significant differences occurred in larval hatching, survival, and metamorphosis rates, whereas significant differences were recorded at flow rates of 20 and 40 L/h. Differences were also observed in the activity of enzymes, such as hexokinase (HK), pyruvate kinase (PK), lactate dehydrogenase (LDH), succinate dehydrogenase (SDH), and malate dehydrogenase (MDH), as well as glycogen levels, at the higher flow rates. These results suggested that velocity in excess of a certain limit leads to a higher glycolysis rate and transition of energy utilization from aerobic to anaerobic metabolism for the abalone larvae. Compared with conventional still-water aquacultural systems, the flow velocity at 5–10 L/h could maintain the water environment stability, and avoid both fertilized eggs from being densely deposited before hatching and the consumption of energy needed to resist high flow velocities. Thus, these results are useful references to enhance the hatchery efficiency, and to conduct large-scale rearing, of abalone larvae.

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Effects of hypoxic stress on the digestion, energy metabolism, oxidative stress regulation, and immune function of the pearl oyster (Pinctada fucata martensii)

Chen

Huang

Peng

et al. 2022

Aquaculture Reports

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Effects of stocking density on growth, metabolism, and energy budget of Haliotis discus hannai Ino

Cited by 11 publications

References 64 publications

Influence of Stocking Density on Growth, Digestive Enzyme Activity, Immunity, and Cortisol Levels of Subadult Half‐smooth Tongue Sole Cynoglossus semilaevis in a Recirculating Aquaculture System

Influence of Stocking Density on Growth, Digestive Enzyme Activity, Immunity, and Cortisol Levels of Subadult Half‐smooth Tongue Sole Cynoglossus semilaevis in a Recirculating Aquaculture System

Effects of Flow Velocity on the Growth and Survival of Haliotis discus hannai Larvae in the Recirculating Upflow System From the Point of Energy Metabolism

Effects of hypoxic stress on the digestion, energy metabolism, oxidative stress regulation, and immune function of the pearl oyster (Pinctada fucata martensii)

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